YaBook  

YaBook is a simple but powerful guestbook running on PHP 5. It features easy installation and customization, multi-language support, an administration interface, and email notifications on new postings. YaBook's design uses a template system so it can be easy integrated into your page.

Hosting Requirements: PHP5
Database: MySQL, PostgreSQL, MS SQL Server, SQLite
Price: Free (GPL)

   Sarzeau Guestbook  

Sarzeau Guestbook is a free database driven PHP guestbook script which supports most major databases. Features: Installation script - Web based admin control panel - Multiple administrators - Respond to entries - Minimum word count - Preview entries - Badword filtering - Emoticons - BB code support - Email address and URL validation - Email address and URL auto links - Empty fields hidden - Sorting/Mulitple pages.

Hosting Requirements: Unix, Windows
Database: MySQL, PostgreSQL, dBase, FrontBase, InterBase, Informix, Mini SQL, MS SQL Server, Oracle 7/8/9, ODBC...
Price: Free (GPL)

   Buendner Guestbook  

Guestbook features: No database needed - email check - url check -wordlength check - bad words filtering - admin area with edit and delete functions - admins can give a comment to an entry - ip tracking - email notification - translated to different languages.

Price: Free

   Cute Guestbook  

PHP based guestbook requires no configuration and no database. Features: Bad words filter, number of messages per page, total messages to keep in record, emoticons with comments and much more.

Price: Free

   phPlebius Guestbook  

This php script allows you to add a completely customizable guestbook to your website. It uses templates and allows you to have mutliple guestbooks with just one installation. Features: Uses templates for easy customization of output - Supports multiple 'skins' for your guestbook - Supports multiple guestbooks with one installation.

Hosting Requirements: Unix, Windows XP; PHP 4+
Price: Free (GPL)

   myGuest  

This guestbook is easy to install (with free support available), sports a "clean" look, and has a fast MySQL backend. Optional JavaScript validation built in.

Hosting Requirements: PHP
Database: MYSQL
Price: Free

   Adelio Classic Flash Guestbook  

With Adelio Classic Guestbook on your ASP or PHP site, your visitors will be pleasantly surprised when they see the book opening and the pages fluently flipping like the real thing! Features: Flash animated movie - No components need to be installed - Implements record caching and paging logic - Password protected admin mode - Source fla for the skin movie is included.

Hosting Requirements: ASP 2; PHP 4.0.5
Database: MS Access 2000; MySQL 3.23+
Price: $10/$99

   Smile Guestbook  

Text-based guestbook with many features: paging of messages, smilies inserting, blockage of messages with html tags and many other...

Hosting Requirements: php
Price: free

   GuestBookHost  

GuestBookHost allows you to start your own free guestbook service for you to offer to other webmasters. Other webmasters can sign up to your service, get the HTML code for their guestbook, view the stats, set the colors for their guestbook, and users can log in later to edit these settings. GuestBookHost also blocks users from posting multiple times.

Hosting Requirements: PHP 4
Database: MySQL
Price: $39.95

   WSN Guest  

This powerful guestbook allows guests to register an account as they sign, so that they can edit their entry later. Includes member system, usergroup permissions, backup utility, and most importantly the ability to add as many custom fields as you desire. Allows members and guests to comment on each other's entries. Includes powerful sorting and search features. Option to require validation by admin. Options to set maximum and minimum lengths for submissions. All language and HTML is customizable through the administrative interface, and importing and exporting languages is simple.

Hosting Requirements: PHP 4.06+
Database: MySQL 3+
Price: Free